Broadband gateway



FIG. 1 is a perspective view of a top, front, side view of a broadband gateway showing my new design.

FIG. 2 is front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the broadband gateway that form no part of the claimed design. 

CLAIM The ornamental design for a broadband gateway, as shown and described. 